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An example of liftings with different Hodge numbers

Shizhang Li

Columbia University

Thursday, October 25, 2018 - 1:25pm to 2:25pm

Vincent Hall 313

Does a smooth proper variety in positive characteristic know the Hodge numbers of its liftings? The answer is "of course not". However, it's not that easy to come up with a counter-example. In this talk, I will first introduce the background of this problem. Then I shall discuss some obvious constraints of constructing a counter-example. Lastly I will present such a counter-example and state a few questions of similar flavor for which I do not know an answer.